1/*
2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24/**
25 * Utility class for launching a test in a separate JVM.
26 */
27
28import java.util.List;
29import java.util.ArrayList;
30import java.util.Arrays;
31import jdk.testlibrary.OutputAnalyzer;
32import jdk.testlibrary.Utils;
33import jdk.testlibrary.ProcessTools;
34import jdk.testlibrary.JDKToolFinder;
35
36public class RunUtil {
37
38    // Used to mark that the test has passed successfully.
39    public static final String successMessage = "Test passed.";
40
41    public static void runTestClearGcOpts(String main, String... testOpts) throws Throwable {
42        runTest(main, true, testOpts);
43    }
44
45    public static void runTestKeepGcOpts(String main, String... testOpts) throws Throwable {
46        runTest(main, false, testOpts);
47    }
48
49    /**
50     * Runs a test in a separate JVM.
51     * command line like:
52     * {test_jdk}/bin/java {defaultopts} -cp {test.class.path} {testopts} main
53     *
54     * {defaultopts} are the default java options set by the framework.
55     * Default GC options in {defaultopts} may be removed.
56     * This is used when the test specifies its own GC options.
57     *
58     * @param main Name of the main class.
59     * @param clearGcOpts true if the default GC options should be removed.
60     * @param testOpts java options specified by the test.
61     */
62    private static void runTest(String main, boolean clearGcOpts, String... testOpts)
63                throws Throwable {
64        List<String> opts = new ArrayList<>();
65        opts.add(JDKToolFinder.getJDKTool("java"));
66        opts.addAll(Arrays.asList(Utils.getTestJavaOpts()));
67        opts.add("-cp");
68        opts.add(System.getProperty("test.class.path", "test.class.path"));
69        opts.add("-Xlog:gc*=debug");
70
71        if (clearGcOpts) {
72            opts = Utils.removeGcOpts(opts);
73        }
74        opts.addAll(Arrays.asList(testOpts));
75        opts.add(main);
76
77        OutputAnalyzer output = ProcessTools.executeProcess(opts.toArray(new String[0]));
78        output.shouldHaveExitValue(0);
79        if (output.getStdout().indexOf(successMessage) < 0) {
80            throw new Exception("output missing '" + successMessage + "'");
81        }
82    }
83
84}
85